Musical Piece Correction Program Selective Timing Quantization
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Solution Overview
Problem
Conventional quantization processing in music performance data correction loses the user's intention by adjusting all sounding timings to standard quantized timings, failing to support improvised inputting and maintaining the original timing intentions in music performance data.
Innovation Solution
A musical piece correction program that reads music performance data, sets reference timings and periods, selects the nearest sounding timing to each reference timing, and corrects only that timing to coincide with the reference, while leaving other timings uncorrected, allowing for the preservation of the user's intended timing deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If quantization processing corrects all sounding timings to standard quantized timings, then rhythm standardization is improved, but user's original timing intentions are lost
Solution Approach 1:
The patent applies local quality by differentiating the treatment of different sounding timings. Instead of uniformly correcting all timings to quantized values, the system selectively corrects only those timings that fall within a predetermined threshold range, while preserving timings that represent intentional user deviations. This localized approach maintains rhythm standardization where needed while preserving creative timing intentions.
Solution Approach 2:
The patent introduces dynamics by making the correction process adaptive rather than static. The system dynamically determines which timings to correct based on their deviation from quantized timings, using a threshold-based decision mechanism. This dynamic approach allows the system to adapt to different musical contexts and preserve user intentions while maintaining rhythm accuracy where appropriate.
2Measurement precision
If quantization processing adjusts all sounds to quantized timings, then timing accuracy is improved, but improvised inputting support deteriorates
Solution Approach 1:
The system applies local quality by selectively applying timing correction only to sounds within a threshold range, while leaving improvised timings untouched. This creates different processing qualities for different types of inputs, maintaining high timing accuracy for standard inputs while preserving the adaptability needed for improvised inputting.
Solution Approach 2:
The patent applies partial action by performing correction on only a subset of sounding timings rather than all timings. By using a threshold-based selection criterion, the system performs correction partially - only when necessary - thereby maintaining timing accuracy for standard cases while preserving improvisation capability for deliberate deviations.
3Manufacturing precision
If all sounding timings are corrected to quantized timings, then rhythm correction is improved, but music performance naturalness deteriorates
Solution Approach 1:
The system maintains music performance naturalness by applying different correction qualities to different timings. Timings within the threshold range receive precise quantized correction, while timings representing natural human performance variations are preserved. This local differentiation maintains both rhythm correction and performance naturalness.
Solution Approach 2:
The patent introduces dynamics into the correction process by adaptively determining which timings to correct based on their deviation magnitude. This dynamic approach allows the system to maintain rhythm correction where needed while preserving the natural ebb and flow of human performance, thereby maintaining music performance naturalness.
Data Source
AI summary
A musical piece correction apparatus corrects a sounding timing (note-on timings) of a sound constituting apart of a musical piece. First, the musical piece correction apparatus reads, from storage means, music performance data indicating sounding timings in the musical piece. Next, the musical piece correction apparatus sets a plurality of reference timings (grids) in a performance period of the musical piece, and sets, for each reference timing, a reference period (area) including said each reference timing. At this point, from among sounding timings included in the reference period, a nearest sounding timing to said each reference timing is selected, and the selected sounding timing is corrected so as to coincide with said each reference timing.